Loose-joint spring-hinge.



Patented'lan'. I6, |900.

H. DER.

0m ING HINGE.

' led July 1o, 1899.;

ATTEST door.

Fries,

Arent LOUIS H. SIIOLDER, OF CLEVELAND, OHIO.

LOOSE-JOINT SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 641,553, dated January16, 1900.

ApplicatiOn iiled July l0, 1899.

To all whom, it may concern:

Be it known that I, Louis H. SHOLDER, a citizen of the United States,residing at Oleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Loose-JointSpring-Hinges;

and I do declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which itappertains to make and use the same.

-My invention relates to loose-joint springhinges; and the object of theinvention is to provide what is known as a loose-joint hinge with aself-closing spring, which is so connected with one section thereof thatthe hinge may be separated, as by lifting off the door, and not disturbthe operative relation and connection of the hinge, and whereby when thedoor is restored to place, as occurs in the taking off and putting backof screen-doors, the spring will be in position to act the same as ifthe hin ge-sections had not been separated and the door removed, allsubstantially as shown and described,and particularly pointed out in theclaims.

Illustrative of this invention, Figure l shows an elevation of the hingelooking at it from the inner side, which rests against the door andcasing. Fig. 2 is a cross-section on line 2 2, Fig. l, showing thecrank, link, and spring connection of the hinge. Fig. 3 shows the hingeWide open, as occurs when a door is swung back against the wall, thisview being in plan. Fig. 4 is a perspective elevation of the twosections of the hinge separated and as they may appear either when thedoor is being taken down or placed in position, the face of one sectionand the back of the other being shown. Fig. 5 is a face view of theupper section, shown in Fig. 4, which carries the spring and is designedto be attached to the Fig. 6 is a detail of the hinge crankpin. v

As already disclosed, this invention is an improvement in loose-jointhinges, by which I mean the class of hinges in which one joint isadapted to be lifted out of or away from the other while attached to thedoor and to be replaced in the same way, after the manner of theold-fashioned loose hinge common in the art many years ago. In itssimplest form my invention involves the adaptation of Serial No.723,286. (No model.)

a spring to such a hinge with the function of closing the door when itpasses the half-way point in one direction and of openingit when itpasses the half-way point in the opposite direction. To these ends thehinge is formed with two identical parts or sections,which are alike inevery particular by preference, though not necessarily, and may whencast be cast in the same gate. Hence they are interchangeable and eithermay have the spring attachments placed thereon. In this instance, A isthe upper section, carrying the said attachments and secured to the doorB, and O is the lower section, designed to be xed and to remainpermanently on the door-casing D. Both sections alike have a flat facing2 and a boxshaped portion 3, in which the operative parts of the hingeare located. Thus each section has a stud or pin 4 at one end withinthis box or housing 3, and projecting outward from the inner edge ofeach section is a short arm or stud, marked 5 on section A and 6 onsection C, but alike on both and having a pin-hole adapted to receivethe hinge-pin Gr. This pin is a separate member, with a crank g at itsupper end and a spline or rib g longitudinally on its lower portion toengage it with the lower section of the hinge, and is long enough toproject through both arms, as shown. Hence when the door is swung andthe upper section of the hinge turns with it the pin G is kept fromrotating by spline g', and this causes the desired action on the spring.

H is the spring, a spiral formed of wire and bent to rest over the pin 4and having its short end h resting against the Wall of the box 3 and itslong end or arm h connected by link L with the arm g of the crank-pin.When the parts are in relation as seen in Fig. 1, the end of arm h liespractically near the wall of the box 3; but when the hinge is full openit is drawn out from the wall, as seen in Fig. 5, and the section A isrotated to bring the arm g past the center to the rear, Fig. 4, so thatthe pin will remain in this position indefinitely and irremovably, atleast by hand, thus making it safe to store away for the winter when thedoor has been removed. Then when the door is replaced the hinge and thespring are in working condition again, as before, and it is practicallyimpossible to remove the door and not have the hinge in the right place;but

IOO

when thrown open the edge of link engages the edge of the hinge andforms a stop, thus leaving the parts as free for separation as if nospring Were used. l

'What I claim is- 1. In loose-joint holdback spring-hinges of thevariety substantially as shown, a hingeseetion constructed to beattached to a door, and having an arln for the pintle, in combinationwith a pintle rotatable in said arm and a spring operatively connectedwith the upper part of said pintle and with said section, substantiallyas set forth.

2. A loose-joint holdbaek spring-hin ge consistin g of twointerchangeable sections, a pintle fixed against rotation in one sectionand having the other rotatable thereon, a spring secured to therotatable section at one end and connections between the top of saidpintle and the opposite end of the spring, substantially as set forth.

3. In loose-joint holdback spring-hinges, a hinge-section having aperforated arm on its inner edge, a pintle in said arm having a lateralprojection at its top, a spring in said section and a link connectingthe spring with said projection, in combination with the oppositesection of the hinge having an arm in which said pintle is lockedagainst rotation, substantially as set forth..

Witness my hand to the foregoing specification this Gth day of July,1899.

LOUIS H. SHOLDER.

Vitnesses:

H. T. FISHER, R. B. MOSER.

